結果

問題 No.2236 Lights Out On Simple Graph
ユーザー au7777au7777
提出日時 2023-04-18 15:24:31
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 1,246 ms / 4,000 ms
コード長 3,825 bytes
コンパイル時間 4,325 ms
コンパイル使用メモリ 246,996 KB
実行使用メモリ 47,484 KB
最終ジャッジ日時 2024-10-13 14:26:08
合計ジャッジ時間 35,992 ms
ジャッジサーバーID
(参考情報)
judge3 / judge5
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
5,248 KB
testcase_01 AC 1 ms
5,248 KB
testcase_02 AC 1 ms
5,248 KB
testcase_03 AC 1,152 ms
47,404 KB
testcase_04 AC 674 ms
25,320 KB
testcase_05 AC 2 ms
5,248 KB
testcase_06 AC 964 ms
47,436 KB
testcase_07 AC 663 ms
14,240 KB
testcase_08 AC 2 ms
5,248 KB
testcase_09 AC 1 ms
5,248 KB
testcase_10 AC 187 ms
14,112 KB
testcase_11 AC 51 ms
5,248 KB
testcase_12 AC 278 ms
14,112 KB
testcase_13 AC 20 ms
5,248 KB
testcase_14 AC 645 ms
25,192 KB
testcase_15 AC 15 ms
5,248 KB
testcase_16 AC 28 ms
5,248 KB
testcase_17 AC 81 ms
8,700 KB
testcase_18 AC 3 ms
5,248 KB
testcase_19 AC 57 ms
6,024 KB
testcase_20 AC 497 ms
25,192 KB
testcase_21 AC 61 ms
6,028 KB
testcase_22 AC 1,155 ms
47,352 KB
testcase_23 AC 1,160 ms
47,356 KB
testcase_24 AC 697 ms
25,192 KB
testcase_25 AC 120 ms
8,828 KB
testcase_26 AC 1,145 ms
47,352 KB
testcase_27 AC 491 ms
25,320 KB
testcase_28 AC 732 ms
25,196 KB
testcase_29 AC 59 ms
6,024 KB
testcase_30 AC 1,119 ms
47,480 KB
testcase_31 AC 1,152 ms
47,348 KB
testcase_32 AC 1,162 ms
47,352 KB
testcase_33 AC 1,158 ms
47,356 KB
testcase_34 AC 1,173 ms
47,484 KB
testcase_35 AC 1,246 ms
47,352 KB
testcase_36 AC 930 ms
47,352 KB
testcase_37 AC 1,159 ms
47,352 KB
testcase_38 AC 558 ms
14,112 KB
testcase_39 AC 401 ms
5,248 KB
testcase_40 AC 328 ms
14,240 KB
testcase_41 AC 60 ms
6,028 KB
testcase_42 AC 212 ms
8,704 KB
testcase_43 AC 17 ms
5,248 KB
testcase_44 AC 825 ms
25,320 KB
testcase_45 AC 887 ms
25,320 KB
testcase_46 AC 893 ms
25,316 KB
testcase_47 AC 825 ms
25,192 KB
testcase_48 AC 1,091 ms
47,480 KB
testcase_49 AC 707 ms
14,112 KB
testcase_50 AC 11 ms
5,248 KB
testcase_51 AC 134 ms
6,152 KB
testcase_52 AC 13 ms
5,248 KB
testcase_53 AC 2 ms
5,248 KB
testcase_54 AC 507 ms
14,112 KB
testcase_55 AC 520 ms
8,700 KB
testcase_56 AC 480 ms
5,900 KB
testcase_57 AC 565 ms
8,832 KB
testcase_58 AC 463 ms
5,896 KB
testcase_59 AC 464 ms
5,896 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <bits/stdc++.h>
#include <atcoder/all>
typedef long long int ll;
using namespace std;
typedef pair<ll, ll> P;
using namespace atcoder;
template<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>;
#define USE998244353
#ifdef USE998244353
const ll MOD = 998244353;
using mint = modint998244353;
#else
const ll MOD = 1000000007;
using mint = modint1000000007;
#endif
const int MAX = 2000005;
long long fac[MAX], finv[MAX], inv[MAX];
void COMinit() {
    fac[0] = fac[1] = 1;
    finv[0] = finv[1] = 1;
    inv[1] = 1;
    for (int i = 2; i < MAX; i++){
        fac[i] = fac[i - 1] * i % MOD;
        inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD;
        finv[i] = finv[i - 1] * inv[i] % MOD;
    }
}
long long COM(int n, int k){
    if (n < k) return 0;
    if (n < 0 || k < 0) return 0;
    return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD;
}
ll gcd(ll x, ll y) {
   if (y == 0) return x;
   else if (y > x) {
       return gcd (y, x); 
   }
   else return gcd(x % y, y);
}
ll lcm(ll x, ll y) {
   return x / gcd(x, y) * y;
}
ll my_sqrt(ll x) {
    // 
    ll m = 0;
    ll M = 3000000001;
    while (M - m > 1) {
        ll now = (M + m) / 2;
        if (now * now <= x) {
            m = now;
        }
        else {
            M = now;
        }
    }
    return m;
}
ll keta(ll num, ll arity) {
    ll ret = 0;
    while (num) {
        num /= arity;
        ret++;
    }
    return ret;
}
ll ceil(ll n, ll m) {
    // n > 0, m > 0
    ll ret = n / m;
    if (n % m) ret++;
    return ret;
}
ll pow_ll(ll x, ll n) {
    if (n == 0) return 1;
    if (n % 2) {
        return pow_ll(x, n - 1) * x;
    }
    else {
        ll tmp = pow_ll(x, n / 2);
        return tmp * tmp;
    }
}
vector<ll> compress(vector<ll>& v) {
    // [3 5 5 6 1 1 10 1] -> [1 2 2 3 0 0 4 0] 
    vector<ll> u = v;
    sort(u.begin(), u.end());
    u.erase(unique(u.begin(),u.end()),u.end());
    map<ll, ll> mp;
    for (int i = 0; i < u.size(); i++) {
        mp[u[i]] = i;
    }
    for (int i = 0; i < v.size(); i++) {
        v[i] = mp[v[i]];
    }
    return v;
}

ll v_to_ll(vector<int>& v) {
    ll ret = 0;
    for (ll i = 0; i < v.size(); i++) {
        if (v[i]) {
            ret += ((ll)1 << i);
        }
    }
    return ret;
}

int main() {
    int n, m;
    cin >> n >> m;
    vector<int> a(m);
    vector<int> b(m);
    for (int i = 0; i < m; i++) {
        cin >> a[i] >> b[i];
        a[i]--;
        b[i]--;
    }
    vector<int> c(n);
    for (int i = 0; i < n; i++) {
        cin >> c[i];
    }
    unordered_map<ll, int> um;
    int fonum = m / 2;
    int lanum = m - m / 2;
    for (int i = 0; i < (1 << fonum); i++) {
        vector<int> reverse(n, 0);
        int cnt = 0;
        for (int j = 0; j < fonum; j++) {
            if ((i >> j) & 1) {
                cnt++;
                reverse[a[j]] = 1 - reverse[a[j]];
                reverse[b[j]] = 1 - reverse[b[j]];
            }
        }
        ll hash = v_to_ll(reverse);
        if (um.find(hash) == um.end()) {
            um.insert({hash, cnt});
        }
        else {
            // um.insert({hash, min(cnt, um[hash])});
            um[hash] = min(cnt, um[hash]);
        }
    }
    int ans = 100000;
    for (int i = 0; i < (1 << lanum); i++) {
        vector<int> reverse = c;
        int cnt = 0;
        for (int j = 0; j < lanum; j++) {
            if ((i >> j) & 1) {
                cnt++;
                reverse[a[fonum + j]] = 1 - reverse[a[fonum + j]];
                reverse[b[fonum + j]] = 1 - reverse[b[fonum + j]];
            }
        }
        ll hash = v_to_ll(reverse);
        if (um.find(hash) != um.end()) {
            ans = min(ans, cnt + um[hash]);
        }
    }
    if (ans == 100000) {
        cout << -1 << endl;
    }
    else {
        cout << ans << endl;
    }
    return 0;
}
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